+++++++++++++++this is what my /etc/default/locale looks like***************************

#  File generated by update-locale
LANG=en_GB.UTF-8
LANGUAGE=en_GB:en
LC_ALL=en_GB.UTF-8

********************This is what my locale looks like************************************'
pi@raspberrypi /usr/share/locale $ locale
LANG=en_GB.UTF-8
LANGUAGE=
LC_CTYPE="en_GB.UTF-8"
LC_NUMERIC=en_US.UTF-8
LC_TIME=en_US.UTF-8
LC_COLLATE="en_GB.UTF-8"
LC_MONETARY=en_US.UTF-8
LC_MESSAGES="en_GB.UTF-8"
LC_PAPER=en_US.UTF-8
LC_NAME=en_US.UTF-8
LC_ADDRESS=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_ALL=

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How to set LC_ALL and LANGUAGE            ??